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New 3/4 " quad exhaust discs


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#1 OFFLINE   gt67

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Posted 04 August 2011 - 05:09 AM

I took out the stock discs with the 3/16'' hole and replaced it with a new 3/4'' discs and what a difference in sound. Very little cabin drone windows up, but down was music to my ears. I would have to spend at least $800.00 on my 40th to get close to sounding like this. Many drivers have taken them out completely but way to loud for my driving. Total cost was $26 and fifteen minutes to install.


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#27 of 128 07 Limited Edition Red Apperance Package
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#2 OFFLINE   68fastback

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Posted 04 August 2011 - 10:21 AM

I took out the stock discs with the 3/16'' hole and replaced it with a new 3/4'' discs and what a difference in sound. Very little cabin drone windows up, but down was music to my ears. I would have to spend at least $800.00 on my 40th to get close to sounding like this. Many drivers have taken them out completely but way to loud for my driving. Total cost was $26 and fifteen minutes to install.


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Very cool!! It was nice of Ford to be so thoughtfull to do it that way. ;)

Edited by 68fastback, 06 January 2012 - 07:35 PM.


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#3 OFFLINE   Boss Doctor

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Posted 28 November 2011 - 12:47 PM

Why not just drill-out the old one?
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#4 OFFLINE   mach 1 1970

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Posted 29 November 2011 - 11:30 AM

Where did you buy them?
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#5 OFFLINE   gt67

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Posted 30 November 2011 - 04:24 AM

Where did you buy them?




Contact Scott at sjrsw (at) yahoo.com

Click here for the exhaust disc thread



Don

http://s698.photobuc...01/Scotts pics/

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#27 of 128 07 Limited Edition Red Apperance Package
CSM 07XL0067 40TH Anniversary Package #67 of 312
#167 of 202 of the 427 w/ Restricted Graphics Package
Currently Hibernating with 88 miles showing, 9/23/13, 88 miles
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#6 OFFLINE   mach 1 1970

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Posted 30 November 2011 - 04:04 PM

Contact Scott at sjrsw (at) yahoo.com

Click here for the exhaust disc thread



Don

Still can't seem to locate
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#7 OFFLINE   SPRSNK

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Posted 02 December 2011 - 08:49 AM

I would just drill the existing ones if I was to go that route.

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#8 OFFLINE   tcrockstar

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Posted 02 December 2011 - 07:53 PM

Just remove them as i did. It sounds awesome
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#9 OFFLINE   mach 1 1970

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Posted 03 December 2011 - 05:49 AM

Just remove them as i did. It sounds awesome

WAY WAY to loud, so I purchased 5/8" plates on Ebay.
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#10 OFFLINE   gt67

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Posted 31 December 2011 - 05:41 AM

Just remove them as i did. It sounds awesome


What did you say, I can't hear you. :hysterical:

Mach 1, how do you like the 5/8" plates?

http://s698.photobuc...01/Scotts pics/

07 GT500 40th Anniversary 427 w/ Red Cobras
#27 of 128 07 Limited Edition Red Apperance Package
CSM 07XL0067 40TH Anniversary Package #67 of 312
#167 of 202 of the 427 w/ Restricted Graphics Package
Currently Hibernating with 88 miles showing, 9/23/13, 88 miles
2012 Comp Orange/Black Boss 302, built 5/19/11, Delivered 5/31/11 #801,9/23/2013 8,800 miles

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#11 OFFLINE   H08KEM

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Posted 31 December 2011 - 03:23 PM

Just bought my brand new boss. Rolled it off the lot yesterday. Been reading about this plate removal to make it sound sick. Is there a good writeup on how to remove? I haven't gotten under the car yet but I hear it's pretty simple to do. Thanks in advance

#12 OFFLINE   gt67

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Posted 01 January 2012 - 04:57 AM

What a great way to start the New Years with a new Boss. What color? I found this info on the other forum, how to remove the discs. Enjoy



This should be good for jacking points, be careful not to put your arm in between the jack when reattaching the rocker bolt while underneath, it is easy to do and you see what I mean when doing it. If the piston ever gives way....

You will need to go just a bit forward from the jack point in the picture but that is fine, no damage worries, the rocker bolt is near the jack point in the picture. Otherwise loosen the rocker bolt before and after but that will make it a little harder to adjust. Make sure the adjustment band on the side pipe has clearance from the floor or it will rattle.

It is best to get a rubber pad for the jack, you can get them anywhere, I ordered one from harborfreight tools and it works great.

The second picture shows how to install the Boss 302 exhaust discs. You remove the three bolts circled.
Attached Thumbnails
Posted Image Posted Image
__________________
Contact me at sjrsw (at) yahoo.com if you are interested in after market exhaust discs of various sizes.

http://s698.photobuc...01/Scotts pics/

07 GT500 40th Anniversary 427 w/ Red Cobras
#27 of 128 07 Limited Edition Red Apperance Package
CSM 07XL0067 40TH Anniversary Package #67 of 312
#167 of 202 of the 427 w/ Restricted Graphics Package
Currently Hibernating with 88 miles showing, 9/23/13, 88 miles
2012 Comp Orange/Black Boss 302, built 5/19/11, Delivered 5/31/11 #801,9/23/2013 8,800 miles

th_Carlisle.jpgth_SF1Z2976.jpgth_QA1O0811.jpgth_PowerTour2011031.jpg


#13 OFFLINE   H08KEM

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Posted 01 January 2012 - 05:43 AM

Gt67

Mine is white with the black accents. Got the windows tinted and it looks sick! I love the way it drives and the exhaust sounds amazing.

Thanks for the help with plate removal. I will be doing this today. I will report back after I get them off

#14 OFFLINE   2012YellowBoss

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Posted 01 January 2012 - 06:28 AM

Thanks to gt67 for posting this. I am the person selling the discs and would rather sell them off the forums. I have to pay $4 per auction on e bay and they are listed for $30 there. Forum price is $26 and $18 for additional sets as needed.

Little history on the discs. I received one of the early Boss 302's and took the discs out before I even drove off the lot. Sounded good at first but in time I did not like the sound while downshifting and thought a better sound could be had. I cut several discs out and tested the different sounds. After posting results on different forums people asked if could get some sets made when I had mine professionally done, the rest is history. The discs are 18 gauge stainless and very well made, currently I run the 7/8 size but 3/4 has been the most popular. The 3/4 gives a good mix of engine sound and exhaust when standing outside of the car coming toward you. Less 1/2 and 5/8 you hear the engine more, 7/8 and 1 inch you hear the exhaust more. I run the 7/8's on track and I have many people tell me they really think the Boss sounds great.

Feel free to contact me at sjrsw (at) yahoo.com with any questions.

#15 OFFLINE   gt67

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Posted 02 January 2012 - 04:52 AM

Welcome to the Team Shelby Boss family. These Bosses are truly special cars. I know you've spent time on the track and have a lot of knowledge about these cars to share with TS members. We will be looking forward to your input. You have done a great job, Scott, modding your 302 for the track. Thanks for making my Boss sound so awesome. :)


Don

http://s698.photobuc...01/Scotts pics/

07 GT500 40th Anniversary 427 w/ Red Cobras
#27 of 128 07 Limited Edition Red Apperance Package
CSM 07XL0067 40TH Anniversary Package #67 of 312
#167 of 202 of the 427 w/ Restricted Graphics Package
Currently Hibernating with 88 miles showing, 9/23/13, 88 miles
2012 Comp Orange/Black Boss 302, built 5/19/11, Delivered 5/31/11 #801,9/23/2013 8,800 miles

th_Carlisle.jpgth_SF1Z2976.jpgth_QA1O0811.jpgth_PowerTour2011031.jpg


#16 OFFLINE   Dig-It

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Posted 02 January 2012 - 07:31 AM

Welcome Scott! Good to see you here as well.
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#17 OFFLINE   mach 1 1970

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Posted 02 January 2012 - 12:13 PM

What did you say, I can't hear you. :hysterical:

Mach 1, how do you like the 5/8" plates?

The 5/8" plates to me sound just right and I removed the foam from the sound tube. Just the right balance @ WOT. Boy do these things like to rev HS.The TracKey has a nice low rumble @ idle. I think the larger plates have more crackle effect @ idle but not sure.

Edited by mach 1 1970, 02 January 2012 - 12:15 PM.

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#18 OFFLINE   H08KEM

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Posted 03 January 2012 - 01:51 PM

Removed the baffles the other day. Extremely easy and fun to get under the vehicle and see how it all is put together! The sound is absolutely sick especially during normal driving conditions. I think I will be updating to a different size baffle to get a better more controlled sound when I open her up. 3/4 and 5/8 is showing up as pretty popular. Has anyone drilled/bought anything larger?

#19 OFFLINE   2012YellowBoss

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Posted 03 January 2012 - 06:07 PM

Thanks for the welcome guys. It has been a lot of fun hitting the track with the Boss. Like many others I wanted a Boss first and only got into tracking because I have it. I have had fun modding the car and being able to put some thing together from scratch like the front splitter. Many other things I copied from long time trackers, I would not have learned so fast without all the forums.

I think the larger plates have more crackle effect @ idle but not sure.


The 1/2 cuts the poping out while giving a much better sound then the factory discs. When you get past the 5/8's the poping is still there just a different note to it. You have to think of the discs more as tuning the sound then cutting the noise level, at least that is how I have come to know it.

Removed the baffles the other day. Extremely easy and fun to get under the vehicle and see how it all is put together! The sound is absolutely sick especially during normal driving conditions. I think I will be updating to a different size baffle to get a better more controlled sound when I open her up. 3/4 and 5/8 is showing up as pretty popular. Has anyone drilled/bought anything larger?


I tested the discs from 1/2 to 7/8, I stopped there because the sound was right for me. After getting into the retail part of the project I had some 1 inch discs made by request. They have sold very well but the 3/4 followed by 5/8 and 7/8 have been the most popular. I have told many people it is hard to recommend what discs is right, everyone loves the sound they installed. The only help I can give you is from what I posted above, the 3/4 gives a good mix of engine noise and exhaust from outside the car coming toward you. If you want more exhaust note go bigger, like to hear the engine scream (it sounds too good to completely drown out) go smaller.

If I can help more please let me know.

Edited by 2012YellowBoss, 03 January 2012 - 06:14 PM.


#20 OFFLINE   mach 1 1970

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Posted 05 January 2012 - 05:47 AM

If you want more engine sound just remove the foam under the dash in the sound tube. That will balance the side exhaust sound when you increase the discs size.

Edited by mach 1 1970, 05 January 2012 - 06:11 AM.

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2007 SGT
2001 Saleen
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2008 Shelby GT conv.


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#21 OFFLINE   2012YellowBoss

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Posted 09 January 2012 - 12:23 PM

If you want more engine sound just remove the foam under the dash in the sound tube. That will balance the side exhaust sound when you increase the discs size.


I have removed my tube, it was more to clean up under the hood but I did not hear any real difference.

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#22 OFFLINE   pitrider

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Posted 09 January 2012 - 01:18 PM

I also removed the sound tube from my Boss,no real difference in sound.Just cleans up the look of the motor ..Also I am running the 3/4 size discs in the side pipes.Sounds great even with no other mods to the stock exhaust,

#23 OFFLINE   Jer

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Posted 11 January 2012 - 09:03 PM

Just remove them as i did. It sounds awesome


I've heard them removed... sounds VERY cool, I'd do it in a second. Roger did electrical exhaust cutouts, it's WAY more subtle than you'd think. But NICE.

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Edited by Jer, 11 January 2012 - 09:08 PM.

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#24 OFFLINE   mach 1 1970

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Posted 12 January 2012 - 01:03 PM

If you want more engine sound you remove the FOAM inside the tube, Not the tube itself. The foam piece is inside the tube under the dash. Without the tube you will have less intake sound inside the car.
DSC07034.JPG

Current Cars

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2008 Shelby GT conv.


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#25 OFFLINE   2012YellowBoss

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Posted 15 January 2012 - 09:03 PM

If you want more engine sound you remove the FOAM inside the tube, Not the tube itself. The foam piece is inside the tube under the dash. Without the tube you will have less intake sound inside the car.


I understand what you are saying with the foam but when I removed the tube I did not hear a noticeable difference. I did it just to clean up the engine bay.

I think I heard more of a difference when I removed all the foam coverings from around and inside the intake. I mainly did that for cooling but the sound was another good side effect.

Edited by 2012YellowBoss, 15 January 2012 - 09:04 PM.


#26 OFFLINE   LostPony

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Posted 01 April 2012 - 09:41 AM

Antone have some pics and tips for removing the foam in the sound tube? I removed my discs and I love it. My GF would prefer something quieter...
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#27 OFFLINE   LostPony

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Posted 01 April 2012 - 10:19 AM

Nevermind, I figured it out!
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#28 OFFLINE   mach 1 1970

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Posted 04 April 2012 - 08:03 AM

How about these side pipes, they bolt right on. Sound is just right with 5/8" plates .

Attached Files


Edited by mach 1 1970, 08 April 2012 - 06:41 AM.

DSC07034.JPG

Current Cars

2010 Shelby GT 500


Past Fords over 33 years

2008 GT500KR
2005 FORD GT
1970 Mach1 (2 )
1970 Boss 302 ( 3 )
1970 GT500
1969 GT350
1966 GT350
2003 Cobra SVT 10th annv.
2007 SGT
2001 Saleen
1971 Boss 351
2001 Cobra SVT
2011 GT500
2004 T-Bird
2006 Shelby GT-H
2012 Boss 302
2008 Shelby GT conv.


Past GM products

11 Corvettes
6 Camaros

#29 OFFLINE   mach 1 1970

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Posted 05 April 2012 - 07:05 AM

Pictures of side pipes. The original will bolt right back in to make it original. You can really hear the lopey sound with the red key. This cost $100 bucks @ a muffler shop. Still have the 5/8" plates installed.

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Edited by mach 1 1970, 08 April 2012 - 06:40 AM.

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2010 Shelby GT 500


Past Fords over 33 years

2008 GT500KR
2005 FORD GT
1970 Mach1 (2 )
1970 Boss 302 ( 3 )
1970 GT500
1969 GT350
1966 GT350
2003 Cobra SVT 10th annv.
2007 SGT
2001 Saleen
1971 Boss 351
2001 Cobra SVT
2011 GT500
2004 T-Bird
2006 Shelby GT-H
2012 Boss 302
2008 Shelby GT conv.


Past GM products

11 Corvettes
6 Camaros

#30 OFFLINE   2012YellowBoss

2012YellowBoss

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Posted 19 April 2012 - 11:11 PM

Theose look good. Local friend of mine made some short tips (about 4 inches) for the side pipes, same idea but shorter.




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